I don't know why they always argue with each other and can't live peacefully.为什么live后面不用peaceful而用peacefully?Michael Jackson's deadth made his fans very sad.为什么用dead而用deadth?

I don't know why they always argue with each other and can't live peacefully.为什么live后面不用peaceful而用peacefully?Michael Jackson's deadth made his fans very sad.为什么用dead而用deadth?
I don't know why they always argue with each other and can't live peacefully.
为什么live后面不用peaceful而用peacefully?
Michael Jackson's deadth made his fans very sad.
为什么用dead而用deadth?

I don't know why they always argue with each other and can't live peacefully.为什么live后面不用peaceful而用peacefully?Michael Jackson's deadth made his fans very sad.为什么用dead而用deadth?
peacefully是修饰live这个动词的,所以要用副词,peaceful是形容词,只能修饰名词
death是名词,dead是形容词,这里要用名词

1.live是动词，用副词修饰。
2.杰克逊的死是名词，作主语。不能用形容词。